Box-nailing machine.



E. G. NORTHRUP.

BOX NAILING MACHINE.

APPLICATION FILED PEB.2, 1911.

Patented May 27, 1913.

2 SHEETS-SHEET 1.

Inventor:

B. C. NORTHRU'P.

BOX NAILING MACHINE.

APPLICATION FILED IEB.2, 1911 Patented May 27, 1913.

mem'nu 2 SKEBTS-SHEET 2.

ELMER C. NORTHBUP, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOE. T AUTOMATIC MACHINE COMPANY, OF SAN FRANCISCO, CALIFORNIA, A CORPORATION OF GALI- li'lilmlh.

Specification of Letters Patent.

Patented May 27, 1213..

Driginal application filed February 23, 1909, Serial No. 479,840. Divided and this application filed February application on box makin February 23, 1909, Serial Serial No. 606,212.

To all whom it may concern: v

Be it known that I, ELMER G. Nonrnnor, a citizen of the United States, formerly resid' at Los Angeles, in the county of Los Angles and State of California, and now residing at Sanhrancisco, in the county of San Francisco and State of California, have invented a new'and useful Box-Nailing Machine, of which the following is a specification.

This application is a division of a former machines filed Referring to the drawings: Figure 1 is a frontelevation of the machine. Fig. 2 is a vertical sectionon an enlarged scale on line w en-Fig. 1. Fig. 3 is a plan view of the the top of the frame 3, each pin projecting slotted nail chute. Fig. 4 1s a front eleva tion of the nail feeding device.

A nail box 1 is pivoted on two pins 2 at from. a bracket 4 which is secured to the framed-there being slotted eyes 5 hinged on pivots 2 which enable the box to be easily removed. Cotter pins6 prevent accidental displacement of the box. The" eyes 5 are cast with the sides of the box 1. As shown in Fig.3., two links 7 are pivotally secured .to a bracket .8 on the box 1 and the lower ends of-the links 7 are'connected by a cross bar .9. Thelcenter of the cross bar 9 is pivotpivoted on a shaft 11. A roller 12 is ally engaged by an arm 10 which is in turn P vided on the oscillatin .arm 13, so that as the latter oscillates, t e roller 12, .actin against lever 10, will reciprocate the link and oscillate the nail box 1. The bottom of the box 1 is provided with a series of ways 14. thus forming slots 15 between each two adjacent ways, into which slots'15 the nailsare shaken by the oscillations of the, nail box. he -shown in Figs. 2 and 3, a series-oil ways 16 and 17 extends on a slant down from the front of the box 1. Theiways 17 are secured to-a bar 18 andthe ways 16- a re secured to. a bar 19. The bars19 are secured to the frame of the machine, while the bars-18 are slotted and slidably secured to bars 19 by cap screws 20, so that the bars 18 may-he adjusted on bars.19,1varyingthe width of the slots between ways lb and 1-7.

The ends of the ways 14: lap over the upper ends of the ways 16 and 17 and the nails which hang down in the slots 15 slide by gravity into the. series of slots between the ways 16 and 17. Secured to the lower faces of the ways 16 and 17 are wings 21 which have beveled edfes 22 serving to straighten up the nails. 11 descending .the ways 16 and 17, the nails become tilted laterally at various angles, but when each nail arrives at the plates 21. the upper part of the nailis first engaged by the up er portion of the inclined edges 22 and as t e nail progresses a gradually increasing length of nail is engaged between the plates 21, so that each nail is gradually brought to a vertical position before it arrives at the lower end of the ways.

Two brackets 23 are fastened at opposite sides of the machine, being secured to a bar 24, and each bracket 23 has an arm 25. Slidably mounted in the upper ends of arms 25 is a square rod 26 and slidably mounted in arms 25 below the rod 26- is a-square rod 27. Slidably mounted on the rod 27 1s a series of Ushaped brackets 28 and a. series of studs 29 on the rod 27 act as abutments against which the respective brackets 28 are pressed by sprin 30. Each bracket 28 has a slot 31and t e rod 26 is provided with a series of pin holes 32 which are adapted to receive pins 33, which pins are adapted to nails to drop from the ways into flared mouths 35; The'o ther arm 36 of each bracket 28 carries a pin 37 having a pointed-curved end, as clearly shown in Fig. 5, and each pin is detachably held in place by a nut 38.

39 designates the nails. As the arms 34 move to the left and uncover the slots torelease the nails, the curved pins 37 pass behind the outermost nail in each slot and strip it positively from the slot. Should there be certain nails which are not required .80 Peach bracket against its abutment, eac

in the nailing. operation, the slots between the ways 16 and 17 which deliver such nails may .be keptclosed by preventing the movement of the arms 34 of brackets 28. This is accomplished by inserting a pin 33, so

that it engages in a slot 31 in the bracket which it is desired to hold stationary. Thus, as in Fig. 6, the bracket at the left is held stationary by the pin 33, while the rod 27 moves to the left and carries with it the other brackets 27 which are carried along by the springs 30. v

As shown in Fig. 1, two pins 33 are arranged to prevent movement of the two outermost brackets 28, as nails which are controlled by those brackets are not required in the nailing operation. A short shaft 41- is mounted in one of the brackets 23 at the right hand side-of the machine, as shown in Fig. 1, and loosely mounted thereon is a disk 42 having pins 43. Pivoted on the shaft 41 is an arm 44 which is connected by a link -45 with an arm 46 which projects from the nail box 1. A pawl 47 is 1pivoted on the arm 44 and is yieldingly he (1 by a spring 48 against a pin 49 on the arm 44. Thus as the nail box 1 oscillates, the awl 47 being operated by the rocking lin 44, will operate against the pin 43 and actuate the disk 42 one-sixth of a revolution. The inner face of the disk 42 is provided with two lon radially arranged cam faces 50 and with four shortefcam faces 51. The path of movement of the two long cam faces 50 is across the ends of both rods 26 and 27,

-while the path of movement of the short cam faces 51' is across the end of the lower rod 27only'. Thus, when a long cam face 50 reaches operative position, it acts against the ends of both rods 26 and '27 and shifts them to the left, thereby moving pins 33 and permittin all of the brackets 28 to move to the left, t ereby uncovering all of the slots andallowing nails from each slot to be 'expelled. When the short cam face 51 arrives at o erative position, it shifts only the lower ro 27 and asthe upper rod 26 remains stationary the brackets 28 which are engaged by pins 33 remain stationary and nails from the slots associated therewith are not expelled. Both rods 26 and 27 are retracted and normally held to the right by tirwo coil springs 52, as clearly shown in at I claim is:

.1. In a box making machine, a seriesof inclined slotted ways, a slidable rod at the lower ends of said ways, a series of brackets slidably mounted on said rod, an abutment on the rod for each bracket, a spring preming bracket having two arms, one'of which normally closes a slot in theadjacent way when' in normal position, a curved pin carried by the other armof each bracket and adapted to remove a nail from the slottedway when the bracket is shifted, means for operating said rod toshift saidbrackets, and means for restraining the shifting movement of any of said brackets without preventing the shifting movement of said rod.

2. In a box making machine, inclined slotted ways for guiding the nails, a slidable .rod at the lower ends of said ways, a series of brackets slidably mounted on said rod, each bracket having an arm normally closing the slot in the adjacent way, the other arm of each bracket being provided with a finger for strippin a nail fromthe adjacent way when the racket is shifted to un cover the slot, means for yieldingly holding 'each bracket in a certain relative position on said rod, a second rod adjacent to the first rod, means for detachably engagin any of'said brackets with the second ro means for imparting simultaneous movement to both rods to shift all of, the brackf ets, and means for" shifting the first named.

rod only, whereby those brackets which are engaged with the second named rod arerestrained from movement while-the other brackets shift with the first rod:

3. In a box makingmachine, inclined slotted ways for guiding the nails, a slidable rod at the lower ends of said ways, a series of brackets slidably mounted on said rod,

each bracket having an arm normally closing the slot in the adjacent way, the other arm of each bracket being provided with a finger for stripping} nail from the adja racket is shifted tonncent way when the cover the slot, means for yieldin'gly holding each bracket in a certain relative position on said rod, a second rod adjacent to the first rod, means for detachably engaging any of said brackets with the'second rod,-a cam at the end of said rods, said cam having a setv of pro ections with 'a pathof movement against the end of one only of said rods, certain of said projections having a path of movement against the ends of both of said rods.

4. In a bOX making machine, inclined slotted ways for guiding the nails, a slidable rod at the lower endsof said'ways, a series of brackets slidably mounted on said rod,

each bracket having an arm normally closing the slot in the adjacent way, the other arm of each bracket being provided with a finger for stripping a nail from the adjacent way when the bracket-'isshifted to uncover the slot, means for yieldingly holding each bracket in a certain relative position on said rpd, a'second rod'adjacent to the first rod, means for detachably engaging any of said brackets withthe' second rod, a cam at the end of said rods, said cam having a setof pro ections with a path of. movement against the end of one only of saidrods, certain'of said projections having a path of movement 7 against the endsof both of said rods, 21 piv- In testimony whereof, I harehereuntej'set oted hopper for delivering nails to said my hand at Los Angeles Cahforma, this-.4

ways, a rock lever pivoted adjacent said day of January, 1911.

cam, an arm and a, link connecting said rock ELMER C. NORTHRUP. lever to said cam, a series of pins on said In presence of?- cam and a pawl on saidrock lever for op- G. T. HACKLEY,

eratmg against said pins to actuate the cam. FRANK L. A. GRAHAM. 

